Doctoral thesis
Open access

Solid-state light-matter interfaces on the quantum test bench

ContributorsClausen, Christoph
Defense date2013-03-22

Solid-state light-matter interfaces based on crystals doped with rare-earth ions have shown great progress in recent years, heading towards quantum technology applications. In this thesis we present three experiments testing the suitability of an atomic frequency comb light-matter interface, implemented in an Nd:YSO crystal, for the storage of quantum information. A dedicated source of entangled photons has been developed, and the storage and retrieval of quantum correlations and entanglement been studied. We show the successful transfer of photonic entanglement to the crystal, and the generation of a matter-matter entangled state between two crystals. These are two of the main steps in a quantum repeater protocol. We also demonstrate faithful storage and retrieval of quantum information encoded in the polarization of heralded single photons. These experiments prove the strong potential of solid-state light-matter interfaces based on atomic frequency combs for quantum communication.

  • quantum memory
  • quantum repeater
  • Nd:YSO
  • parametric down-conversion
  • atomic frequency comb
Citation (ISO format)
CLAUSEN, Christoph. Solid-state light-matter interfaces on the quantum test bench. 2013. doi: 10.13097/archive-ouverte/unige:27706
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Creation04/29/2013 11:37:00 AM
First validation04/29/2013 11:37:00 AM
Update time03/14/2023 8:10:01 PM
Status update03/14/2023 8:10:01 PM
Last indexation09/18/2023 8:29:46 PM
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